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PALO VERDE SCHOOL DISTRICT 49

PWS ID: AZ0407400 · PALO VERDE, Arizona 85343

PALO VERDE SCHOOL DISTRICT 49 serves 450 people in PALO VERDE, Arizona using Groundwater water sources. It has 278 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: PALO VERDE SCHOOL DISTRICT 49

PALO VERDE SCHOOL DISTRICT 49 is a local-owned non-transient non-community water system that delivers drinking water to 450 residents in PALO VERDE, Arizona (Maricopa County) through 11 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 278 total violations for this system , of which 4 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 271 monitoring and reporting violations are on file. The most recent violation on record dates to 2014.

The most frequently cited contaminant at this system is Xylenes, Total, recorded in 12 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Arizona, EPA tracks 1,493 public water systems serving 7,322,166 people, with 228,944 cumulative violations and 15,663 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 153.3 violations. PALO VERDE SCHOOL DISTRICT 49's 278 violations sit above the Arizona average. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
450
Total Violations
278
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
11
County
Maricopa
School/Daycare
Yes
MCL Violations
4
Monitoring Violations
271
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Xylenes, Total MR 12 2014
Fluoride MR 12 1988
1,1-Dichloroethylene MR 11 2013
1,2-Dichloroethane MR 11 2013
1,1,1-Trichloroethane MR 11 2013
Toluene MR 11 2013
Ethylbenzene MR 11 2013
cis-1,2-Dichloroethylene MR 11 2013
DICHLOROMETHANE MR 11 2013
Carbon tetrachloride MR 11 2013
Tetrachloroethylene MR 11 2013
CHLOROBENZENE MR 11 2013
trans-1,2-Dichloroethylene MR 11 2013
Styrene MR 11 2013
o-Dichlorobenzene MR 11 2013
1,2-Dichloropropane MR 11 2013
Benzene MR 11 2013
Trichloroethylene MR 11 2013
1,1,2-Trichloroethane MR 11 2013
p-Dichlorobenzene MR 11 2013
1,2,4-Trichlorobenzene MR 10 2013
Arsenic MR 10 2011
Vinyl chloride MR 7 2013
Nitrate MR 5 2004
Chlorine MR 5 2013
Arsenic MCL 3 2009
Coliform (TCR) MR 2 2013
Diquat MR 1 1999
Endothall MR 1 1999
Cadmium MR 1 1988

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for PALO VERDE SCHOOL DISTRICT 49.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AZ0407400 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arizona Drinking Water Authority

Arizona DEQ — Drinking Water Program is the primacy agency that licenses and inspects PALO VERDE SCHOOL DISTRICT 49 under EPA-delegated authority.

Open AZ regulator portal

Source: Arizona DEQ — Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2014 Xylenes, Total MR 12 SDWIS / AZ0407400 / 2955
2013 1,1-Dichloroethylene MR 11 SDWIS / AZ0407400 / 2977
2013 1,2-Dichloroethane MR 11 SDWIS / AZ0407400 / 2980
2013 1,1,1-Trichloroethane MR 11 SDWIS / AZ0407400 / 2981
2013 Toluene MR 11 SDWIS / AZ0407400 / 2991
2013 Ethylbenzene MR 11 SDWIS / AZ0407400 / 2992
2013 cis-1,2-Dichloroethylene MR 11 SDWIS / AZ0407400 / 2380
2013 DICHLOROMETHANE MR 11 SDWIS / AZ0407400 / 2964
2013 Carbon tetrachloride MR 11 SDWIS / AZ0407400 / 2982
2013 Tetrachloroethylene MR 11 SDWIS / AZ0407400 / 2987
2013 CHLOROBENZENE MR 11 SDWIS / AZ0407400 / 2989
2013 trans-1,2-Dichloroethylene MR 11 SDWIS / AZ0407400 / 2979
2013 Styrene MR 11 SDWIS / AZ0407400 / 2996
2013 o-Dichlorobenzene MR 11 SDWIS / AZ0407400 / 2968
2013 1,2-Dichloropropane MR 11 SDWIS / AZ0407400 / 2983

How PALO VERDE SCHOOL DISTRICT 49 Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric PALO VERDE SCHOOL DISTRICT 49 Arizona avg Federal benchmark
Total violations 278 153.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 95.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 450 4,904 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,493 regulated public water systems in Arizona.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is PALO VERDE SCHOOL DISTRICT 49 water safe to drink? ▼
PALO VERDE SCHOOL DISTRICT 49 (PWS ID: AZ0407400) has 278 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 450 people using Groundwater sources.
How many people does PALO VERDE SCHOOL DISTRICT 49 serve? ▼
PALO VERDE SCHOOL DISTRICT 49 serves 450 people in PALO VERDE, Arizona. It is a Local-owned system using Groundwater water sources with 11 service connections.
What type of violations does PALO VERDE SCHOOL DISTRICT 49 have? ▼
PALO VERDE SCHOOL DISTRICT 49 has 278 total violations: 4 health-based violations (MCL exceedances or treatment failures), 271 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in PALO VERDE SCHOOL DISTRICT 49 water? ▼
No PFAS testing data is available for PALO VERDE SCHOOL DISTRICT 49 under the EPA's UCMR5 monitoring program.
What water source does PALO VERDE SCHOOL DISTRICT 49 use? ▼
PALO VERDE SCHOOL DISTRICT 49 uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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